CVE-2026-49309: CWE-264 Permissions, Privileges, and Access Controls in Huawei HarmonyOS
CVE-2026-49309 is a permission control vulnerability in the Settings module of Huawei HarmonyOS. Successful exploitation may compromise service confidentiality. The vulnerability affects specific versions of HarmonyOS including 4.0.0, 4.2.0, 4.3.0, 4.3.1, and 4.3.3. The CVSS score is 4.8, indicating a medium severity level. No official patch or remediation guidance is currently available.
AI Analysis
Technical Summary
This vulnerability in Huawei HarmonyOS involves improper permission controls within the Settings module, classified under CWE-264 (Permissions, Privileges, and Access Controls). Exploiting this flaw could lead to unauthorized access affecting the confidentiality of services. The issue affects multiple specific versions of HarmonyOS as listed. The CVSS vector indicates that the attack requires physical access (AV:P), high attack complexity (AC:H), no privileges (PR:N), and user interaction (UI:R), with a scope change (S:C) and high confidentiality impact (C:H) but no impact on integrity or availability. There is no known exploit in the wild and no vendor-provided patch or remediation level at this time.
Potential Impact
Successful exploitation may lead to a breach of service confidentiality within the affected HarmonyOS versions. There is no indication of impact on integrity or availability. The vulnerability requires physical access and user interaction, limiting the ease of exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been provided by Huawei as of the published date. Users should monitor Huawei's advisories for updates.
CVE-2026-49309: CWE-264 Permissions, Privileges, and Access Controls in Huawei HarmonyOS
Description
CVE-2026-49309 is a permission control vulnerability in the Settings module of Huawei HarmonyOS. Successful exploitation may compromise service confidentiality. The vulnerability affects specific versions of HarmonyOS including 4.0.0, 4.2.0, 4.3.0, 4.3.1, and 4.3.3. The CVSS score is 4.8, indicating a medium severity level. No official patch or remediation guidance is currently available.
CVSS v3.1
Score 4.8medium
Affected software
pkg:github/huawei/harmonyosRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Huawei HarmonyOS involves improper permission controls within the Settings module, classified under CWE-264 (Permissions, Privileges, and Access Controls). Exploiting this flaw could lead to unauthorized access affecting the confidentiality of services. The issue affects multiple specific versions of HarmonyOS as listed. The CVSS vector indicates that the attack requires physical access (AV:P), high attack complexity (AC:H), no privileges (PR:N), and user interaction (UI:R), with a scope change (S:C) and high confidentiality impact (C:H) but no impact on integrity or availability. There is no known exploit in the wild and no vendor-provided patch or remediation level at this time.
Potential Impact
Successful exploitation may lead to a breach of service confidentiality within the affected HarmonyOS versions. There is no indication of impact on integrity or availability. The vulnerability requires physical access and user interaction, limiting the ease of exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been provided by Huawei as of the published date. Users should monitor Huawei's advisories for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- huawei
- Date Reserved
- 2026-05-29T03:16:14.062Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa0db9eacd9273b49b1890b
Added to database: 09/09/2026, 04:07:58 UTC
Last enriched: 09/09/2026, 04:22:36 UTC
Last updated: 09/09/2026, 04:51:25 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.